| LEAP-1B23 ✕ | LEAP-1B25 ✕ | LEAP-1B27 ✕ | LEAP-1B28BBJ2 ✕ | |
|---|---|---|---|---|
| Family | LEAP-1B | LEAP-1B | LEAP-1B | LEAP-1B |
| EASA ID | 20CM095 | 20CM096 | 20CM098 | 20CM097 |
| Aircraft Engine Manufacturer | CFM International | CFM International | CFM International | CFM International |
| Aircraft Engine Type | Turbofan | Turbofan | Turbofan | Turbofan |
| Comment | Boeing 737 MAX | Boeing 737 MAX | Boeing 737 MAX | Boeing 737 MAX |
| Dry Weight (kg) | 2780 | 2780 | 2780 | 2780 |
| Diameter (mm) | 1763 | 1763 | 1763 | 1763 |
| Max Rotating Diameter (mm) | 1763 | 1763 | 1763 | 1763 |
| Length (mm) | 3147 | 3147 | 3147 | 3147 |
| Height (mm) | 2256 | 2256 | 2256 | 2256 |
| Width (mm) | 2421 | 2421 | 2421 | 2421 |
| Wikipedia Article (URL) | en.wikipedia.org/wiki/CFM_International_LEAP | en.wikipedia.org/wiki/CFM_International_LEAP | en.wikipedia.org/wiki/CFM_International_LEAP | en.wikipedia.org/wiki/CFM_International_LEAP |
| Fuel | Jet A | Jet A | Jet A | Jet A |
| Fan Blades | 18 | 18 | 18 | 18 |
| Geared Fan | No | No | No | No |
| Low-Pressure Compressor Stages | 3 | 3 | 3 | 3 |
| High-Pressure Compressor Stages | 10 | 10 | 10 | 10 |
| Combustion Chamber | TAPS II | TAPS II | TAPS II | TAPS II |
| High Pressure Compressor Stages | 2 | 2 | 2 | 2 |
| Low-Pressure Turbine Stages | 5 | 5 | 5 | 5 |
| Afterburner | No | No | No | No |
| Streams | 2 | 2 | 2 | 2 |
| Bypass Ratio | 8.5 | 8.4 | 8.3 | 8.3 |
| Overall Pressure Ratio | 37.9 | 40.135 | 40.5 | 40.5 |
| Maximum Takeoff Thrust (kN) | 115.2 | 119.2 | 124.7 | 124.7 |
| Hydrocarbon Take Off (g/kg fuel) | 0.04 | 0.04 | 0.05 | 0.05 |
| Hydrocarbon Climb Out (g/kg fuel) | 0.04 | 0.04 | 0.04 | 0.04 |
| Hydrocarbon Approach (g/kg fuel) | 0.05 | 0.05 | 0.05 | 0.05 |
| Hydrocarbon Idle (g/kg fuel) | 0.64 | 0.59 | 0.51 | 0.51 |
| Hydrocarbon Unitary Average (g/kN) | 0.86 | 0.78 | 0.68 | 0.68 |
| Hydrocarbon Unitary Sigma (g/kN) | 0.09 | 0.09 | 0.09 | 0.09 |
| Hydrocarbon Unitary Range (g/kN) | 0.66-0.84 | 0.66-0.84 | 0.66-0.84 | 0.66-0.84 |
| Hydrocarbon Unitary Characteristic (g/kN) | 1.32 | 1.2 | 1.05 | 1.05 |
| Hydrocarbon Unitary Characteristicto Regulatory (% of limit) | 6.8 | 6.1 | 5.4 | 5.4 |
| Hydrocarbon LTO (g) | 99 | 93 | 85 | 85 |
| Carbon Monoxide Take Off (g/kg fuel) | 0.16 | 0.17 | 0.17 | 0.17 |
| Carbon Monoxide Climb Out (g/kg fuel) | 0.14 | 0.14 | 0.14 | 0.14 |
| Carbon Monoxide Approach (g/kg fuel) | 1.36 | 1.25 | 1.11 | 1.11 |
| Carbon Monoxide Idle (g/kg fuel) | 15.61 | 15.27 | 14.4 | 14.4 |
| Carbon Monoxide Unitary Average (g/kN) | 20.06 | 18.94 | 17.81 | 17.81 |
| Carbon Monoxide Unitary SD (g/kN) | 0.77 | 0.77 | 0.77 | 0.77 |
| Carbon Monoxide Unitary Range (g/kN) | 16.97-18.38 | 16.97-18.38 | 16.97-18.38 | 16.97-18.38 |
| Carbon Monoxide Unitary Characteristic (g/kN) | 24.62 | 23.25 | 21.86 | 21.86 |
| Carbon Monoxide Unitary Characteristicto Regulatory (% of limit) | 20.9 | 19.7 | 18.5 | 18.5 |
| NOx Take Off (g/kg fuel) | 38.19 | 48.9 | 55.26 | 55.26 |
| NOx Climb Out (g/kg fuel) | 18.11 | 20.35 | 23.26 | 23.26 |
| NOx Approach (g/kg fuel) | 10.7 | 11.1 | 11.59 | 11.59 |
| NOx Idle (g/kg fuel) | 4.63 | 4.57 | 4.59 | 4.59 |
| NOx Unitary Average (g/kN) | 39.68 | 45.46 | 50.72 | 50.72 |
| NOx Unitary SD (g/kN) | 1.38 | 1.38 | 1.38 | 1.38 |
| NOx Unitary Range (g/kN) | 56.39-59.15 | 56.39-59.15 | 56.39-59.15 | 56.39-59.15 |
| NOx Unitary Characteristic (g/kN) | 46 | 52.7 | 58.79 | 58.79 |
| NOx Unitaryto Standard (% of limit) | 39.7 | 43.8 | 48.6 | 48.6 |
| NOx Unitaryto CAEP2 (% of limit) | 49.6 | 54.8 | 60.7 | 60.7 |
| NOx Unitaryto CAEP4 (% of limit) | 55.5 | 60.4 | 66.8 | 66.8 |
| NOx Unitaryto CAEP6 (% of limit) | 61.5 | 66.5 | 73.5 | 73.5 |
| NOx Unitaryto CAEP8 (% of limit) | 69.7 | 74.9 | 82.7 | 82.7 |
| NOx LTO (g) | 4573 | 5417 | 6326 | 6326 |
| Smoke Take Off (SN) | 0.94 | 0.94 | 0.94 | 0.94 |
| Smoke Climb Out (SN) | 0.85 | 0.85 | 0.85 | 0.85 |
| Smoke Approach (SN) | 1.07 | 1.07 | 1.07 | 1.07 |
| Smoke Idle (SN) | 0.8 | 0.8 | 0.8 | 0.8 |
| Smoke Max (SN) | 1.16 | 1.16 | 1.16 | 1.16 |
| Smoke Sigma (SN) | 0.29 | 0.29 | 0.29 | 0.29 |
| Smoke Range (SN) | 0.34-0.9 | 0.34-0.9 | 0.34-0.9 | 0.34-0.9 |
| Smoke Characteristic (SN) | 1.49 | 1.49 | 1.49 | 1.49 |
| Smoke Characteristicto Regulatory (% of limit) | 6.6 | 6.6 | 6.7 | 6.7 |
| Fuel Flow Take Off (kg/s) | 0.916 | 0.96 | 1.014 | 1.014 |
| Fuel Flow Climbout (kg/s) | 0.752 | 0.784 | 0.826 | 0.826 |
| Fuel Flow Approach (kg/s) | 0.253 | 0.26 | 0.273 | 0.273 |
| Fuel Flow Idle (kg/s) | 0.091 | 0.091 | 0.095 | 0.095 |
| Fuel LTO (kg) | 340 | 348 | 365 | 365 |
| Fuel Venting Compliant | Yes | Yes | Yes | Yes |
| Carbon Monoxide LTO (g) | 2312 | 2257 | 2221 | 2221 |
| Compressor Description | 1 fan, 3-stage LP, 10-stage HP | 1 fan, 3-stage LP, 10-stage HP | 1 fan, 3-stage LP, 10-stage HP | 1 fan, 3-stage LP, 10-stage HP |
| Emissions Data Status | C | C | C | C |
| Emissions Data Superseded | Yes | Yes | Yes | Yes |
| Emissions Superseded By | 01P20CM134 | 01P20CM135 | 01P20CM136 | 01P20CM139 |
| NOx Compliance Demonstration | 2.3.2 e) | 2.3.2 e) | 2.3.2 e) | 2.3.2 e) |
| Turbine Description | 2-stage HP, 5-stage LP | 2-stage HP, 5-stage LP | 2-stage HP, 5-stage LP | 2-stage HP, 5-stage LP |